Marshawn Kneeland, a Dallas Cowboys defensive lineman, has died. He was 24, and in his second NFL season after a notable time at Western Michigan. His team confirmed the tragic news with little detail. RELATED: Prayers Up! More Than 25 People Reportedly Dead As Hurricane Melissa Tears Through Jamaica, Haiti & Cuba (PHOTOS) Marshawn Kneeland Passes-Latest UpdatesThe Dallas Cowboys said Kneeland died overnight. There were no other details on his death, and agent Jonathan Perzley asked for privacy.